﻿<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<p>你好，我是测试的p标签</p>
<div></div>
</body>
    <script src="myJquery1.0.js"></script>
    <script>
        $('p').css('color','red');
        $.extend({a:100});
        $.extend($,{b:100},{c:200});
        $.fn.extend({a:900});
        $.fn.extend($.fn,{b:100},{c:200});
    </script>
</html>